JP4043005B2 - Friction welding method - Google Patents

Description

【００３５】
表１に示すように、実施例４、５及び７においては、溶接部の表面性状及び曲げに対して何ら問題なく良好な結果が得られた。また、実施例３及び６においては、若干の溶接部欠陥があるものの、曲げに対しては問題なく使用可能である。これに対して、比較例１は溶接部表面及び曲げ共に問題が発生し使用不可能である。
【００３６】
【発明の効果】
以上詳述したように、請求項１、３の発明によれば、複数の接合箇所における複数の接合線に沿って摩擦接合を同時に行うから、一度の作業により部材同士の接合が可能になり、接合前段取り、接合後処理も一度でよいことになる。従って、歪みや強度低下がないのは無論のこと、良好な摩擦接合を得ることが出来、しかも大型の構造物が少ない工数で出来、低価格化が図れる。
【００３７】
請求項２の発明によれば、重ね合わせた部材に糸巻型の摩擦接合工具のピンを差し込み、部材の一端から他端まで移動させるから、回転しているピンにより発生する摩擦熱によりピンの通過部位が可塑化してピン両端の円盤による圧力が付加されて重ね合わせた部材同士がスポット接合されることになる。従って、重ね合わせた部材についても、歪みや強度低下がないのは無論のこと、良好な摩擦接合を得ることが出来る。
【００３８】
また、請求項３の発明によれば、複数の重層した部材を同時に摩擦接合するから、一度の操作により複数の重層した部材の接合が可能になり、接合前段取り、接合後処理も一度でよいことになる。従って、重層した部材の接合が少ない工数で出来、低価格化が図れる。
【００３９】
請求項１〜５の発明によれば、構造の複雑な各種部材の接合箇所を同時に接合できるから、大型の接合部材の製作が容易になり、軽量化の達成がし易くなる。従って、強度面、コスト面の双方から好適な大型の接合部材を得られる。
【００４０】
請求項１〜３の発明によれば、糸巻型接合部を使用することで、裏当て治具が必要なくなり、糸巻型接合部が部材に追従して軸方向の振れが無くなり、複数の接合部位を同時になお一層仕上がりの良好な摩擦接合が出来る。従って、裏当て治具を使用する際の段取りも必要なく、振れが無い分摩擦接合の仕上がりが良く、加えて同時摩擦接合により、工数削減が出来る。
【００４１】
請求項６の発明によれば、溝及び／又は突起により塑性流動状態にある部材の一部分がピン側に流れ、円盤による圧力と相まって良好な摩擦接合が得られる。従って、上記効果に加えて、摩擦接合の仕上がりがなお一層良くなる。
【００４２】
請求項７の発明によれば、上記効果に加えて、ポータブルな回転工具に糸巻型接合部を着すれば、現場での摩擦接合も可能となるし、ポータブルな回転工具でなくても、必要に応じた糸巻型接合部を着すれば、どのような接合箇所にも容易に対応できる効果がある。
【図面の簡単な説明】
【図１】 本発明の第１の実施形態を示す接合部材の製作状態の側面図である。
【図２】 本発明の第２の実施形態を示す接合部材の製作状態の側面図である。
【図３】 本発明の第３の実施形態を示す接合部材の製造状態の断面図である。
【図４】 本発明の第４の実施形態を示す接合部材の製造状態の斜視図である。
【図５】 本発明の第５の実施形態を示す接合部材の製造状態の斜視図である。
【図６】 裏当て冶具が必要な場合における接合部材の製造状態の側面図である。
【図７】 ２つの部材を重ね合わせて接合する接合状態を示す側面図である。
【図８】 本発明の第６の実施形態を示す接合部材の製造状態の側面図である。
【図９】 裏当て冶具が必要な場合における接合部材の製造状態の側面図である。
【図１０】 本発明の摩擦接合工具の糸巻型接合部の構造の一実施形態を示す側面図である。
【図１１】 図１０の断面図である。
【図１２】 本発明の摩擦接合工具の糸巻型接合部の構造の他の実施形態を示す側面図である。
【図１３】 図１２の断面図である。
【図１４】 本発明の摩擦接合工具の糸巻型接合部の構造のさらに他の実施形態を示す側面図である。
【図１５】 図１４の断面図である。
【図１６】 本発明の摩擦接合工具の糸巻型接合部の構造のさらに他の実施形態を示す側面図である。
【図１７】 図１６の断面図である。
【図１８】 従来の摩擦接合を示す断面図である。
【符号の説明】
１、２、２０、２１、５３ 部材
３、４、４１、４２ 面板
５ ブリッジ
６、７、２２、２３ 接合箇所
２４、３２、３６、３７ 接合箇所
４４、４５、５６ 接合箇所
８、９ 接合線
１０、１０ａ、１０ｂ 摩擦接合工具
１０ｃ、１０ｄ 摩擦接合工具
１１ ピン
１２、１３ 円盤
１４、１６、２５、５２ 糸巻型接合部
１５ 軸
３０、３１、５０ 板材
５１、５５ 板材
３３、３４ チャンネル
３５ 拘束治具
４０、４３ ハニカムパネル
４６ 裏当て治具
５４ 継ぎ手
６０、６０ａ 溝
６１、６１ａ 突起
Ａ、Ｂ、Ｃ、Ｄ、Ｅ、Ｆ 接合部材[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a friction joining method applied when aluminum and its alloy are used in a large structure for reducing the weight of various equipment, particularly transportation equipment.
[0002]
[Prior art]
From the viewpoint of environmental protection, in order to reduce the amount of fuel used, various types of equipment, particularly transportation equipment, are being actively reduced in weight, and the use of aluminum and aluminum alloys in the equipment is increasing. Aluminum and its alloy material are light weight, can have high rigidity by optimizing the cross-sectional shape, and are excellent in smoothness, and thus are suitable as members for transportation equipment such as vehicles and ships.
[0003]
However, since the aluminum member for equipment is produced by extrusion, the width of the shape material that can be formed is limited. Further, arc welding (MIG, TIG) is applied to the joining from the viewpoint of strength, and there is a problem that the material is deformed by thermal strain during welding. It is necessary to delete the surplus formed at the time of arc welding at a part where the appearance is important. Further, the strength is lowered due to the heat influence around the welded part due to the great heat input during welding, and the structure must be designed with a thicker wall, reducing the light-weight effect at the corners.
[0004]
6000 series (Al-Mg-Si series) aluminum alloy extruded materials are most often used for vehicle structures, but in ordinary 6000 series alloys, the heat affected zone (by heat input during arc welding) HAZ) is softened, and the strength of the original extruded 6000 series alloy is greatly impaired. In addition, defects such as the occurrence of blowholes and solidification cracks peculiar to arc welding may occur, and the welded part is reworked and re-welded, which requires a lot of man-hours and the appearance of the welded part is also impaired. There are also difficulties.
[0005]
As a joining method with less heat input and less softening and distortion, there is an aluminum shape butt friction joining method (JP-A-9-309164, etc.). The purpose of this method is to frictionally join one surface or two surfaces of members to suppress deformation of the joint portion and to obtain a good joint in a short time.
[0006]
For example, as shown in FIG. 18, when joining two panels a and b composed of two substantially parallel plates c and d and a member e connecting the two plates c and d, The end portions of the plates c and d of one panel a are friction-joined to the end portions of the plates c and d of the other panel b. At that time, a plate f for connecting the plates c and d is provided at the end of at least one panel a or b so that the pressing force at the time of frictional joining can be supported by the plate f.
[0007]
[Problems to be solved by the invention]
Friction welding of aluminum and its alloy two-sided hollow profile made by the above friction welding does not melt the joint, so there are defects specific to fusion welding such as arc welding represented by conventional TIG and MIG. Although there is little decrease in strength of the joint part, when a plurality of joining parts are produced when the members are brought together, the joining work is repeatedly performed for each joining part, so that the joining work becomes complicated. There is also a problem in workability when joining in the state where the plates are stacked. Furthermore, the finish of joining of members may be greatly different depending on the structure of the friction welding tool.
[0008]
The present invention has been made in order to solve the above-described problems in friction welding of aluminum and aluminum alloy members applied to various equipment such as transportation equipment, and the purpose thereof is to be able to join a plurality of joint sites at the same time. It is an object of the present invention to provide a friction joining method capable of joining plates and obtaining a friction finishing with a good finish.
[0009]
[Means for Solving the Problems]
A friction joining method according to claim 1 for achieving the above object is a method of friction joining two members in which a plurality of joining points are produced when they are brought into contact with each other, and a pin having a length comparable to the thickness of the member. A disk is fixed in parallel on both sides to form a pincushion joint, and a friction welding tool comprising a plurality of pincushion joints is inserted from one end of the plurality of joints generated by the butting to the other end. The plurality of joints are frictionally joined at the same time. In this configuration, since friction welding is simultaneously performed along a plurality of joining lines at a plurality of joining locations, members can be joined by a single operation, and pre-joining setup and post-joining processing may be performed once. . Further, according to this tool configuration, the use of the pincushion joint eliminates the need for a backing jig, the pincushion joint follows the member, eliminates axial deflection, and allows a plurality of joints to be simultaneously formed. Friction welding with good finish is possible.
[0010]
According to a second aspect of the present invention, there is provided a friction joining method in which two members for joining are overlapped, and a plurality of the two overlapped members are frictionally joined at the same time. The pin is fixed in parallel on both sides of the pin to form a pincushion joint, and a friction welding tool provided with a plurality of pincushion joints is used to connect the plurality of overlapped two members . It is characterized in that it is inserted from one end and moved to the other end, and the joint portions of the two overlapped two members are simultaneously friction joined. Accordingly, since the plurality of stacked members are friction-bonded at the same time, it is possible to bond the plurality of stacked members by a single operation, and the pre-bonding setup and post-bonding processing may be performed once.
[0011]
The friction joining method according to claim 3 is a method in which two members to be joined are butted together, and a plurality of the two butted members are friction-joined at the same time . A pin is fixed to both sides of the pin in parallel to form a pincushion joint, and a friction welding tool having a plurality of pincushion joints is inserted from one end of the joint between the two butted members. It is moved to the other end, and the joint locations of the two butted members are friction-joined simultaneously.
[0012]
According to a fourth aspect of the present invention, there is provided a friction welding method according to any one of the first to third aspects, wherein the pincushion type joint portion of the friction welding tool has a groove and / or a protrusion at a portion that comes into contact with the member when the member is frictionally joined. Is provided. Accordingly, a part of the member in a plastic flow state flows to the pin side due to the grooves and / or protrusions, and a friction bonding with an even better finish is obtained in combination with the pressure by the disk.
[0013]
Friction welding method according to claim 5, in any one of claims 1 to 4, pincushion junction of the friction welding tool is characterized in that it is a detachably attached to the friction welding. Therefore, if the pincushion type joint is connected to a portable rotary tool, on-site friction welding becomes possible.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS.
FIG. 1 is a side view of a production state of a joining member showing a first embodiment ( embodiment of the invention according to claim 1) of the present invention. In the figure, the members 1 and 2 to be joined together have a face plate 3 and 4 connected by a bridge 5 to form a hollow material. The members 1 and 2 are made of, for example, an extruded shape of aluminum or an alloy thereof, but the material of the members 1 and 2 is not particularly limited as long as it can be used for friction bonding. When these members 1 and 2 are brought into contact with each other, a joint portion 6 between the face plates 3 and a joint portion 7 between the face plates 4 are generated. Bonding lines 8 and 9 are formed at the bonding point 6 and the bonding point 7 and are restrained by a restraining jig (not shown) so as not to move at the time of friction bonding. The joining member A can be formed by moving the friction welding tool 10 in a rotating state along the joining lines 8 and 9 and friction joining the joining locations 6 and 7 simultaneously.
[0015]
That is, the friction welding tool 10 has the disks 12 and 13 fixed in parallel to both ends of a pin 11 having a length l ₁ (t ₁ and l ₁ are substantially equal) of the thickness t ₁ of the face plate 3. A pincushion joint 14 is formed, and a pincushion joint 16 having the same configuration is attached via a shaft 15. The length of the pin 11 is approximately the same as the thickness of the face plate 4. The distance L ₁ between the pincushion joints 14 and 16 is equal to the distance L ₂ between the joints 6 and 7 (L ₁ = L ₂ ). Therefore, if the friction welding tool 10 having the above-described configuration is used, a backing jig is not required, and the pincushion type joints 14 and 16 follow the members 1 and 2 and no axial deflection occurs. Moreover, it becomes possible to carry out friction welding of the joining locations 6 and 7 of the members 1 and 2 at the same time, and the members 1 and 2 can be joined to each other by a single operation. It will be.
[0016]
FIG. 2 shows a production state of a joining member showing a second embodiment ( embodiment of the invention according to claim 1) of the present invention, and when joining the members 20 and 21, three joining locations 22, 23 are shown. , 24 are generated, and the joining member B is formed. Compared with the embodiment shown in FIG. 1, the friction welding tool 10 a is also different in that 25 is required in addition to the pincushion type joints 14 and 16.
[0017]
FIG. 3 shows a manufacturing state of a joining member showing a third embodiment ( embodiment of the invention according to claim 3) of the present invention . In this embodiment, the large number of plates 30 and 31 are simultaneously friction-joined by the friction welding tool 10b having the same number of pincushion-type joints as the joint portions 32 generated when a large number of 30 and 31 are butted together. A large number of joining members C are to be obtained.
[0018]
FIG. 4 shows a manufacturing state of a joining member showing a fourth embodiment ( embodiment of the invention according to claim 1) of the present invention, in which extruded channels 33 and 34 are butted together, and a restraining jig 35 is in that state. The joints 36 and 37 are produced when restrained by the above, and the joints 36 and 37 are simultaneously friction-joined by the friction welding tool 10 similar to that shown in FIG. It is.
[0019]
FIG. 5 shows a manufacturing state of a joining member showing a fifth embodiment ( embodiment of the invention according to claim 1) of the present invention. In this embodiment, the channel 33 is fitted between the end portions of the face plates 41 and 42 of the honeycomb panel 40, and the channel 34 is similarly fitted between the end portions of the face plates 41 and 42 of the honeycomb panel 43. When 43 is abutted, joint portions 44 and 45 between the face plates 41 and 42 are formed, and joint portions 36 and 37 between the channels 33 and 34 are simultaneously formed. Therefore, in the friction welding tool 10 having the same configuration as shown in FIG. 4, the joint portions 44 and 45 between the face plates 41 and 42 and the joint portions 36 and 37 between the channels 33 and 34 are frictionally joined at the same time. The joining member E which is a large honeycomb panel is to be obtained. Note that the length of the pin 11 of the pincushion joint 14 of the friction welding tool 10 is the sum of the thickness of the face plate 41 and the thickness of the channel 33 or 34, and further the pin 11 of the pincushion joint 16. The length is the sum of the thickness of the face plate 42 and the thickness of the channel 33 or 34.
[0020]
FIG. 6 shows a manufacturing state of the joining member shown as a reference. When the members 1 and 2 in FIG. 1 are abutted together, the joining portion 6 and the joining portion 7 that are generated are simultaneously friction-joined by the friction welding tool 10c to make the joining member A. When the pincushion type joint 16 cannot be used, there is no disk 13 and only the pin 11 is used for joining. Therefore, a backing jig 46 is required on the lower surface of the face plate 4.
[0021]
FIG. 7 shows, as a reference, a joining form in which two members are overlapped and joined. The members for joining, that is, the plates 50 and 51 are overlapped, and the friction welding tool 10d is inserted from one end to the other end. It is moved and friction bonded to make the bonding member F. This friction welding tool 10d has one pincushion type joint 52, and the length of the pin 11 is substantially equal to the thickness of the stacked plates 50 and 51. While the rotating pins are moving from one end of the stacked plates 50 and 51 to the other end, the passing portions of the pins 11 are plasticized by the generated frictional heat, and the disks 12 and 13 at both ends of the pins 11 are plasticized. Thus, the overlapped plates 50 and 51 are joined to each other.
[0022]
FIG. 8 shows a production state of a joining member showing a sixth embodiment of the present invention ( embodiment of the invention according to claim 2), and a plurality of members for joining, that is, a plurality of stacked plates 50 and 51 are simultaneously shown. It is intended to be friction bonded. Therefore, the friction welding tool 10 shown in FIG. 1 is used. The rest is exactly the same as the embodiment shown in FIG.
[0023]
FIG. 9 shows a manufacturing state of the joining member shown as a reference. The member 53 for joining has an overlap joint 54, and a plate 55 is fitted on the joint 54, as if two plates are overlapped. Therefore, the joining location 56 which arises by the butt | matching of the member 53 and the board 55, and the state in which the joint 54 and the board 55 of the member 53 are piled up generate | occur | produce. Accordingly, the member 53 and the plate 55 may be joined at the joining point 56, or at the overlapping portion of the joint 54 and the plate 55. In FIG. 9, the multi-layered portions are joined. From the situation of the joint 54, the friction welding tool 10c shown in FIG. 6 is used, and the backing jig 46 is required.
[0024]
Next, examples for confirming the effects of the present invention will be described.
Example 1
The aluminum alloy extruded shape (6N01-T5, length 15m) having the cross-sectional shape shown in FIG. 1 and having dimensions of a face plate thickness of 3 mm, a bridge thickness of 3 mm, and an overall thickness of 30 mm is constrained so that it does not open during joining. did. A friction welding tool having a pin having a diameter of 4.0 mm, a length of 3 mm, and two pincushion type joints having a disk diameter of 10 mm is rotated at 3000 rpm and moved along the joining line at a feed rate of 250 mm / min. Two face plates were simultaneously friction bonded. As a result, there was obtained a friction bonded portion having no bonding error or the like, no defect on the surface, and no defect found in the X-ray transmission inspection. In addition, four protrusions having a height of 0.5 mm were provided on the outer surface of the pin of the pincushion joint at an angle of 45 degrees with respect to the axial direction of the pin.
[0025]
Example 2
Two 2.5 mm-thick plate members made of 6N01-T5 having the cross-sectional shape shown in FIG. 8 are stacked, and further, a 2.5 mm-thick plate material and a 5.0 mm-thick plate material are stacked. The plate material was restrained with a separation of 75 mm. A pincushion joint having a pin diameter of 5.0 mm and a length of 5 mm and a disk diameter of 15 mm; and a pincushion joint having a pin diameter of 5.0 mm and a length of 7.5 mm and a disk diameter of 15 mm. The friction welding tool was rotated at 3000 rpm and moved from one end of these plates to the other at a feed rate of 250 mm / min, and the two plates were simultaneously friction bonded. As a result, there was obtained a friction bonded portion having no bonding error and the like, having no defects on the surface, and having no defects found in the transmission X-ray inspection. In addition, four protrusions having a height of 0.5 mm were provided on the outer surface of the pin of the pincushion joint at an angle of 45 degrees with respect to the axial direction of the pin.
[0026]
The friction welding tools 10, 10 a, 10 b, 10 c, and 10 d have been described above in relation to the friction welding of the members or plates shown in FIGS. 1 to 9, but the pin 11 and the disks 12 and 13 of the pincushion type bonding portion 14 have been described. It became clear that there was a big difference in the finish of friction welding depending on the structure. The basic friction welding tool 10 comprises a pincushion joint 14 by fixing disks 12 and 13 in parallel to both ends of a pin 11 having a length approximately equal to the thickness of a member to be friction welded. One or more parts 14 are provided. The friction welding tools 10, 10a to 10d are all detachable from the shaft of the rotary power machine, and can be changed to various forms of friction welding tools as required. Further, if a portable rotary power machine is used, it is possible to perform frictional joining even in the field.
[0027]
On the other hand, what is shown in FIGS. 10 to 13 is a groove 60 and / or a portion where the pincushion type joint portion 14 abuts when the members are frictionally joined, that is, the outer peripheral surface of the pin 11 and the inner surface of the disks 12 and 13. Protrusions 61 are provided so that a part of the member in a plastic flow state flows toward the pin 11 side of the pincushion joint 14. Accordingly, the use of the pincushion joint 14 eliminates the need for a backing jig, the pincushion joint 14 follows the member, and there is no axial vibration, and the groove 60 and / or the protrusion 61 causes a plastic flow state. A part of the member located on the pin 11 flows to the pin 11 side, and in combination with the pressure by the disks 12 and 13, good friction welding is obtained.
[0028]
Next, the effect of the groove 60 and / or the protrusion 61 will be proved by an example.
Example 3
Using a friction welding tool with a pin diameter of 4 mm, a length of 4 mm, and a disk diameter of 12 mm, the pin of the pincushion type joint is rotated at 3000 rpm, and an aluminum alloy extruded shape with a thickness of 4 mm at a feed rate of 250 mm / min. The jointed part of the material (6N01-T5) was friction bonded. In this case, a groove 60 as shown in FIGS. 10 and 11 on the outer peripheral surface of the pin, that is, a groove 60 having a width of 0.5 mm, a depth of 0.5 mm, and a length of 1.5 mm is 45 degrees with respect to the axial direction of the pin. The ones that were cut in two rows above and below six at equal intervals were used.
[0029]
Example 4
In Example 3, a protrusion 61 as shown in FIGS. 12 and 13, ie, a protrusion 61 having a width of 0.5 mm, a height of 0.5 mm, and a length of 1.5 mm, is provided on the outer peripheral surface of the pin with respect to the axial direction of the pin. In this example, six pieces arranged in two rows at an equal interval of 45 degrees were used. Other conditions were the same as in Example 3.
[0030]
Example 5
In Example 3, grooves 60a as shown in FIGS. 14 and 15, that is, grooves 60a having a maximum width of 1.0 mm, a depth of 0.5 mm, and a length of 3.0 mm are equally spaced on the inner side surfaces of the two disks. 4 were used. Other conditions were the same as in Example 3.
[0031]
Example 6
In Example 3, protrusions 61a as shown in FIGS. 16 and 17, that is, protrusions 61a having a maximum width of 1.0 mm, a height of 0.5 mm, and a length of 3.0 mm are equally spaced on the inner surfaces of the two disks. 4 were used. Other conditions were the same as in Example 3.
[0032]
Example 7
In Example 3, a pin 61 having protrusions 61 as shown in FIGS. 12 and 13 on the outer peripheral surface of the pin and grooves 60a as shown in FIGS. 14 and 15 being provided on the inner surfaces of the two disks was used. Other conditions were the same as in Example 3.
[0033]
Comparative Example 1
In Example 3, using a pin having no grooves and / or protrusions on the outer peripheral surface of the pin and the inner surface of the disk, the joined portion of the aluminum alloy extruded section (6N01-T5) having a thickness of 4 mm was friction bonded. did. Other conditions were the same as in Example 3. The results are shown in Table 1.
[0034]
[Table 1]

[0035]
As shown in Table 1, in Examples 4, 5 and 7, good results were obtained without any problems with respect to the surface properties and bending of the welded portion. In Examples 3 and 6, although there are some weld defects, it can be used without problems for bending. On the other hand, Comparative Example 1 cannot be used because of problems in both the weld surface and bending.
[0036]
【The invention's effect】
As described above in detail, according to the inventions of claims 1 and 3 , since the friction welding is simultaneously performed along the plurality of bonding lines in the plurality of bonding locations, the members can be bonded to each other by a single operation. The pre-bonding setup and post-bonding treatment can be performed once. Therefore, it is obvious that there is no distortion or strength reduction, a good friction joining can be obtained, and a large-sized structure can be formed with a small number of man-hours, and the cost can be reduced.
[0037]
According to the invention of claim 2, since the pin of the pincushion type friction welding tool is inserted into the overlapped member and moved from one end of the member to the other end, the pin passes by the frictional heat generated by the rotating pin. The parts are plasticized, and the pressure applied by the disks at both ends of the pin is applied, so that the overlapped members are spot-joined. Accordingly, it is a matter of course that there is no distortion or a decrease in strength of the overlapped members, and good friction bonding can be obtained.
[0038]
Further , according to the invention of claim 3, since a plurality of stacked members are friction-joined at the same time, a plurality of stacked members can be joined by a single operation, and pre-joining setup and post-joining processing may be performed once. It will be. Therefore, joining of the laminated members can be performed with less man-hours, and the cost can be reduced.
[0039]
According to the invention of claims 1 to 5, since it joined the joint complex various members of the structure at the same time, production of a large joint member is facilitated, easily to achieve weight reduction. Therefore, a suitable large-sized joining member can be obtained in terms of both strength and cost.
[0040]
According to the first to third aspects of the present invention, the use of the pincushion type joint eliminates the need for a backing jig, the pincushion type joint follows the member, and there is no runout in the axial direction. At the same time, it is possible to achieve friction bonding with an even better finish. Therefore, there is no need for setup when using the backing jig, the finish of the friction welding is good because there is no runout, and the number of steps can be reduced by simultaneous friction welding.
[0041]
According to the sixth aspect of the present invention, a part of the member in the plastic flow state flows to the pin side due to the grooves and / or protrusions, and a good friction joining is obtained in combination with the pressure by the disk. Therefore, in addition to the above effects, the finish of friction welding is further improved.
[0042]
According to the invention of claim 7, in addition to the above effect, if a pincushion type joint is attached to a portable rotary tool, it is possible to perform friction welding on site, and even if it is not a portable rotary tool, it is necessary. If a pincushion joint according to the above is worn, there is an effect that any joint location can be easily handled.
[Brief description of the drawings]
FIG. 1 is a side view of a manufacturing state of a joining member showing a first embodiment of the present invention.
FIG. 2 is a side view of a manufacturing state of a joining member showing a second embodiment of the present invention.
FIG. 3 is a cross-sectional view of a manufacturing state of a joining member showing a third embodiment of the present invention.
FIG. 4 is a perspective view of a manufacturing state of a joining member showing a fourth embodiment of the present invention.
FIG. 5 is a perspective view of a manufacturing state of a joining member showing a fifth embodiment of the present invention.
FIG. 6 is a side view of a manufacturing state of a joining member when a backing jig is required .
FIG. 7 is a side view showing a joining state in which two members are superposed and joined .
FIG. 8 is a side view of a manufacturing state of a joining member showing a sixth embodiment of the present invention.
FIG. 9 is a side view of a manufacturing state of a joining member when a backing jig is required .
FIG. 10 is a side view showing an embodiment of the structure of the pincushion joint of the friction welding tool of the present invention.
11 is a cross-sectional view of FIG.
FIG. 12 is a side view showing another embodiment of the structure of the pincushion joint of the friction welding tool of the present invention.
13 is a cross-sectional view of FIG.
FIG. 14 is a side view showing still another embodiment of the structure of the pincushion joint portion of the friction welding tool of the present invention.
15 is a cross-sectional view of FIG.
FIG. 16 is a side view showing still another embodiment of the structure of the pincushion joint of the friction welding tool of the present invention.
FIG. 17 is a cross-sectional view of FIG.
FIG. 18 is a cross-sectional view showing a conventional friction welding.
[Explanation of symbols]
1, 2, 20, 21, 53 Member 3, 4, 41, 42 Face plate 5 Bridge 6, 7, 22, 23 Joint part 24, 32, 36, 37 Joint part 44, 45, 56 Joint part 8, 9 Joint line 10, 10a, 10b Friction welding tool 10c, 10d Friction welding tool 11 Pin 12, 13 Disc 14, 16, 25, 52 Pincushion type joint 15 Shaft 30, 31, 50 Plate material 51, 55 Plate material 33, 34 Channel 35 Restraint treatment Tool 40, 43 Honeycomb panel 46 Backing jig 54 Joint 60, 60a Groove 61, 61a Projection A, B, C, D, E, F Joining member

Claims (5)

In a method of friction-joining two members having a plurality of joining points when they are butted together, a pin is fixed in parallel on both sides of a pin having a length similar to the thickness of the member to form a pincushion-type joint. The friction welding tool comprising a plurality of pincushion type joints is inserted from one end of the plurality of joints generated by the butting and moved to the other end, and the plurality of joints are frictionally joined simultaneously. Friction welding method. In a method in which two members for joining are overlapped and a plurality of the two overlapped members are friction-joined at the same time, the plurality of overlapped two members are constrained at a distance from each other, and disks are provided on both sides of the pin. parallel affixed constitute a pincushion joint, moving the friction welding tool comprising a plurality of yarn winding type joint, to the other end is inserted from one end of the joint of the two members the allowed plurality of superimposed A friction welding method characterized in that the joint portions of the two overlapped two members are simultaneously friction welded. In a method in which two members to be joined are abutted, and a plurality of the two abutted members are friction-joined at the same time, the two abutted members are constrained at a distance from each other, and a disk is fixed in parallel on both sides of the pin and constitutes a pincushion joint, the friction welding tool comprising a plurality of yarn winding type joint, is moved to the other end is inserted from one end of the joint of the plurality of abutting two members, said plurality of A friction welding method characterized by simultaneously friction-joining the joined portions of two butted members . The pincushion type joint portion of the friction welding tool is provided with a groove and / or a protrusion at a portion that comes into contact with the member when the member is friction-joined. Friction welding method. The friction welding method according to any one of claims 1 to 4, wherein the pincushion type joint portion of the friction welding tool is detachable from the friction welding tool.

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